Physiological changes in green and red cherry tomatoes after photocatalytic ethylene degradation using continuous air flux

2021 ◽  
pp. 108201322110561
Author(s):  
Maria Jaízia dos Santos Alves ◽  
Marielle Correia Nobias ◽  
Lenilton Santos Soares ◽  
Daniela Sousa Coelho ◽  
Marcelo Maraschin ◽  
...  
Keyword(s):  
Respiration Rate ◽  
Storage Period ◽  
Physiological Changes ◽  
Ethylene Concentration ◽  
Soluble Solid ◽  
Physiological Quality ◽  
And Control ◽  
First Time ◽  
Cherry Tomatoes

In this work photocatalytic ethylene degradation (TiO2-UV) was applied in green cherry tomatoes with the aim to control biochemical and physiological changes during ripening. Photocatalytic process was performed at 18 °C  ±  2 °C and 85% HR for 10 days using continuous air flux. Ethylene, O2 and CO2 concentration from cherry tomatoes under TiO2-UV and control (c) fruits, were measured by GC-MS for 10 days. After that, the tomatoes were stored for 20 days. During the photocatalysis process, ethylene was completely degraded and control fruits, the ethylene was 28.73 nL g−1. Respiration rate was lower for fruits under TiO2-UV than control. During storage period, cherry tomatoes treated by TiO2-UV, showed lower ethylene concentration, respiration rate, total soluble solid, lycopene, sugar and organic acid content than control showing that the fruits treated with photocatalysis did not reach the full maturity. In addition, all the cherry tomatoes showed different maturity stages. Fungal incidence was higher in control fruits than fruits treated with photocatalysis. This research showed for the first time that photocatalytic technology preserved the physiological quality of cherry tomatoes for 30 days of storage, being a promised technology to preserve cherries tomatoes.

scholarly journals Physiological quality of pink pepper seeds (Schinus terebinthifolia Raddi.) as a function of storage

2021 ◽  
Vol 38 (1) ◽  
pp. 144-157
Author(s):  
Thaísa De Oliveira Silveira ◽  
Madelon Rodrigues Braz ◽  
Gilmara Pires de Moura Palermo ◽  
Tiago Böer Breier
Keyword(s):  
Moisture Content ◽  
Storage Time ◽  
Storage Period ◽  
Seed Storage ◽  
Dry Weight ◽  
Native Forest ◽  
Alternative Source ◽  
Physiological Quality ◽  
And Storage

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

scholarly journals Evaluation of the physiological quality of anadenenthera peregrina (L.) Speg. seeds during storage

2009 ◽  
Vol 33 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Daniel Santos Pinho ◽  
Eduardo Euclydes de Lima e Borges ◽  
Viviana Borges Corte ◽  
Luiz Carlos Bhering Nasser
Keyword(s):  
Electrical Conductivity ◽  
Storage Temperature ◽  
Storage Period ◽  
Seed Priming ◽  
Seed Moisture ◽  
Physiological Quality ◽  
Viable Seeds ◽  
Cold Chamber ◽  
Constant Percentage

The aim of this experiment was to evaluate the effect of storage temperature on the viability and vigour of A. peregrina seeds. Seeds of A. peregrina harvested in Viçosa-MG, in September 2005 were used. The seeds were stored in the Laboratory of Forest Seeds Analysis (LASF) of the Universidade Federal de Viçosa (UFV), in a cold chamber, under approximately 5ºC over150 days. The seeds were stored under 20ºC for 150 days more. Seed moisture was determined after oven-drying at 105 ± 3ºC for 24 hours. The seeds were analyzed monthly using germination, tetrazolium and electrical conductivity tests and Osmopriming during 300 days, with four repetitions of 25 seeds. A. peregrina seeds kept a constant percentage of germination and viable seeds under the tetrazolium test for five months of storage, under either 5ºC and 20ºC. The electrical conductivity test showed significant differences in relation to the storage period, proving to be more sensitive than the standard germination test. Seed priming in PEG -0,4 MPa solution was not efficient in recovering the viability and vigor of the stored seeds at 5ºC and 20ºC.

scholarly journals Seed treatment and pre-inoculation of soybean: effect of storage period and agrochemicals on the physiological quality of seed and yield

2019 ◽  
Vol 14 (3) ◽  
pp. 151-160
Author(s):  
Eloi Sandini Itacir ◽  
Brugnera Belani Rafael ◽  
Kimie Falbo Margarete ◽  
Pacentchuk Fabiano ◽  
Huzar-Novakowiski Jaqueline
Keyword(s):  
Seed Treatment ◽  
Storage Period ◽  
Physiological Quality

scholarly journals Simultaneous Determination of Six Active Compounds in Yixin Badiranjibuya Granules, a Traditional Chinese Medicine, by RP-HPLC-UV Method

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Ning Yu ◽  
ChenHui He ◽  
Gulistan Awuti ◽  
Cheng Zeng ◽  
JianGuo Xing ◽  
...  
Keyword(s):  
Chinese Medicine ◽  
Rosmarinic Acid ◽  
Quality Evaluation ◽  
Scientific Basis ◽  
Determination Method ◽  
Rp Hplc ◽  
And Control ◽  
First Time

In this study, a sensitive, precise, and accurate HPLC-UV method was developed and validated to simultaneously determine the six analytes (luteolin-7-O-β-D-glucuronide, apigenin-7-O-β-D-glucuronide, diosmetin-7-O-β-D-glucuronide, acacetin-7-O-β-D-glucuronide, tilianin, and rosmarinic acid) in Yixin Badiranjibuya Granules, in which five analytes (i.e., luteolin-7-O-β-D-glucuronide, apigenin-7-O-β-D-glucuronide, diosmetin-7-O-β-D-glucuronide, acacetin-7-O-β-D-glucuronide, and rosmarinic acid) were determined for the first time in Yixin Badiranjibuya Granules, the content of tilianin in Yixin Badiranjibuya Granules was reported in other literatures, and the content of tilianin in our work was higher than that of the literature reports. The quality of 11 batch samples from four different manufacturers was evaluated using the proposed determination method. The contents of the six analytes were largely different among samples from various manufacturers. Therefore, this determination method can provide a scientific basis for quality evaluation and control of Yixin Badiranjibuya Granules.

scholarly journals Physiological quality of soybean seeds stored after industrial treatments with different chemicals

2021 ◽  
Vol 10 (2) ◽  
pp. e6310212279
Author(s):  
Renata Cristiane Pereira ◽  
Lucas Caiubi Pereira ◽  
Alessandro Lucca Braccini ◽  
Larissa Vinis Correia ◽  
Murilo Fuentes Pelloso ◽  
...  
Keyword(s):  
Block Design ◽  
Accelerated Aging ◽  
Storage Period ◽  
Original Data ◽  
Soybean Seeds ◽  
Randomized Block Design ◽  
Seedling Length ◽  
Physiological Quality ◽  
Main Components

This study aimed to relate the smallest set of variables that compose the quality of soybean seeds lot under study, as well as to evaluate the influence of four industrial seed treatments and their respective slurry volumes on the physiological potential. The experiment was carried out in a completely randomized block design with 4 replicates and 24 treatments. The chemical treatments were: control (T1), micronutrient + polymer + drying powder (T2), bioregulator + polymer + drying powder (T3) and micronutrient + bioregulator + polymer + drying powder (T4). The seeds were stored for periods of 0, 15, 30, 45, 60 and 90 days and were subsequently evaluated for their physiological potential. In each storage period, the variable germination, first count, accelerated aging, emergence speed index, final emergence in the sand substrate, aerial part length, root length and total seedling length were evaluated. The main components of the standard germination test and first count were the ones that most contributed to explaining the variability of the original data. Increasing the volume of the slurry in the industrial seed treatment reduces the physiological quality of soybean seeds during storage.

scholarly journals Effects of age at first access to range area on pecking behaviour and plumage quality of free-range layer chickens

2015 ◽  
Vol 58 (1) ◽  
pp. 85-91 ◽  
Author(s):  
M. Petek ◽  
E. Topal ◽  
E. Cavusoglu
Keyword(s):  
Body Region ◽  
Control Group ◽  
Feather Pecking ◽  
Free Range ◽  
Commercial Company ◽  
Negative Effect ◽  
Layer Chickens ◽  
And Control ◽  
First Time

Abstract. The aim of this study was to investigate the effects of age on pecking behaviour and plumage quality of free-range laying hens during first access to range. Six hundred 16-week-old layer pullets obtained from a commercial company were housed in a experimental free-range house. The experimental house consisted of a slat-and-litter floor with range area and was divided into three similar pens. The pullets were randomly assigned to a control and two experimental groups according to age at first access to range area. The birds were allowed into the range area for the first time at 18, 20 and 22 weeks of age in the groups of treatment I, treatment II and control, respectively. Pecking behaviour and plumage quality of the birds were measured for 8-week intervals from 24 to 48 weeks of age. Total feather damage significantly increased with age in all groups (P < 0.040, P < 0.006, P < 0.001). Compared to the control group, birds allowed into the range area earlier had less feather damage. The feather score of the tail body region in all groups was significantly greater (more damage) than in the others (P < 0.001). There were no significant differences for the total pecking behaviour of the birds in the groups at 24, 32, 40 and 48 weeks of age. Incidents of gentle feather pecking in every period were more frequent, while aggressive pecking was less frequent (P < 0.026, P < 0.007, P < 0.001). It can be said that access to range area as early as possible at the beginning of the laying period may be useful to reduce the negative effect of feather pecking in free-range layer chickens.

scholarly journals Metabolites of the phenylpropanoid pathway and physiological quality of soybean seeds in storage

2021 ◽  
Vol 43 ◽  
Author(s):  
Julia Abati ◽  
Claudemir Zucareli ◽  
Cristian Rafael Brzezinski ◽  
Francisco Carlos Krzyzanowski ◽  
José de Barros França-Neto ◽  
...  
Keyword(s):  
Lignin Content ◽  
Seedling Emergence ◽  
Storage Period ◽  
Seed Storage ◽  
Phenylpropanoid Pathway ◽  
Controlled Environment ◽  
Soybean Seeds ◽  
Physiological Quality ◽  
Storage Potential

Abstract: The aim of this study was to evaluate changes in the physiological quality of soybean seeds throughout a storage period in two environments, and to evaluate how these changes are related to metabolites of the phenylpropanoid pathway. A completely randomized experimental design was used in a 4 × 8 factorial arrangement (storage periods × cultivars) with four replications. We used seeds from cultivars with contrasts in lignin content, color, and presence of anthocyanin in the seed coat, and isoflavone content in the seed. The seeds were kept for six months under cold and dry storage and in a non-controlled environment. Germination, first germination count, seedling emergence, and tetrazolium testing were performed on the seeds every two months. The physiological quality of the seeds declines during the storage period, with higher rates of decrease in the non-controlled environment. The metabolites of the phenylpropanoid pathway that were studied, especially lignin, affect seed storage potential. Cultivars with higher lignin content show greater storage potential, especially in a non-controlled environment.

scholarly journals Physiological quality and economic evaluation of treated cowpea seeds stored in different packaging

2020 ◽  
Vol 9 (7) ◽  
pp. e686974625
Author(s):  
Erick Almeida Andrade ◽  
José Eldo Costa ◽  
Rosilene de Morais da Silva ◽  
Julian Junio de Jesus Lacerda ◽  
Bruno Ettore Pavan ◽  
...  
Keyword(s):  
Chemical Treatment ◽  
Storage Period ◽  
Dry Mass ◽  
Hypocotyl Length ◽  
Seed Moisture Content ◽  
Chemical Treatments ◽  
Pet Bottles ◽  
Cowpea Seeds ◽  
Physiological Quality

The objective of this work was to evaluate the physiological quality of cowpea seeds and the economic viability of storage in different types of packaging and with different chemical treatments. Seeds were submitted to one of the following chemical treatments of active ingredients: fipronil; fipronil + pyraclostrobin + thiophanate methyl; and fludioxonil + metalaxyl. Seeds without chemical treatment constituted the control. Seeds were placed in permeable cotton bags, permeable raffia bags, semipermeable kraft paper bags, and impermeable PET bottles. The following were evaluated: seed moisture content; germination test; first germination count; germination speed index; hypocotyl length; root length and hypocotyl dry mass and root dry mass. Cost analysis of treatments was also performed. The physiological quality of cowpea seeds was more markedly reduced under storage conditions in permeable packages with fludioxonil + metalaxyl treatment. Impermeable packaging without chemical treatment decreased deterioration of physiological quality in cowpea seeds and is economically viable for a storage period of up to 90 days.

scholarly journals ETHANOL AND NITRIC OXIDE IN QUALITY MAINTENANCE OF ‘GALAXY’ APPLES STORED UNDER CONTROLLED ATMOSPHERE

2017 ◽  
Vol 39 (5) ◽  
Author(s):  
AURI BRACKMANN ◽  
VAGNER LUDWIG ◽  
FABIO RODRIGO THEWES ◽  
ROGERIO OLIVEIRA ANESE ◽  
ERANI ELISEU SCHULTZ ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Respiration Rate ◽  
Ethylene Production ◽  
Acc Oxidase ◽  
Acid Oxidase ◽  
Controlled Atmosphere ◽  
Ethylene Concentration ◽  
Flesh Firmness ◽  
Oxidase Enzyme

ABSTRACT The aim of this work was to evaluate the effect of ethanol and two nitric oxide dose applications on the maintenance of the post-storage quality of ‘Galaxy’ apple during storage under controlled atmosphere (CA). Treatments evaluated were: [1] 1.2 kPa O2 + 2.0 kPa CO2; [2] CA + 20 µL L-1 of nitric oxide, [3] CA + 40 µL L-1 of nitric oxide; [4] CA + 1 ml of ethanol kg-1 fruit. Fruits received treatments before storage and were kept under CA during eight months and seven days of storage at 20 °C. Fruits had been kept on CA for eight months and seven days at 20° C. Fruits treated with ethanol showed higher ethylene production, low flesh firmness, high flesh breakdown, mealiness and acetaldehyde production. Fruits treated with 40 µL L-1 nitric oxide showed lower ethylene production, respiration rate and ACC oxidase ( (1-aminocyclopropane-1-carboxylic acid) oxidase enzyme activity. Apples treated with 20 uL L-1 nitric oxide showed higher ethylene production, respiration rate, internal ethylene concentration CO2 and ethanol concentration. Ethanol and nitric oxide application before storage have no benefits in maintaining fruit quality after storage under CA due to lower flesh firmness, higher mealiness incidence, flesh breakdown and decay incidence.

scholarly journals Seed quality of rice cultivars stored in different environments

2014 ◽  
Vol 36 (1) ◽  
pp. 32-39 ◽  
Author(s):  
Elizabeth Rosemeire Marques ◽  
Eduardo Fontes Araújo ◽  
Roberto Fontes Araújo ◽  
Sebastião Martins Filho ◽  
Plínio César Soares
Keyword(s):  
Seed Quality ◽  
Accelerated Aging ◽  
Storage Period ◽  
Rice Cultivars ◽  
Germination Test ◽  
Randomized Design ◽  
Physiological Quality ◽  
Completely Randomized Design ◽  
And Storage

The objective of this study was to evaluate dormancy and physiological quality of seeds of rice cultivars during storage in different environments. After harvesting, the seeds of three rice cultivars (Seleta, Curinga and Relâmpago) were dried in the sun, to reach moisture content at around 13%. Then, they were packed in paper and stored in four environments: 5 ± 2 ºC / 70 ± 5% RH, 12 ± 2 ºC / 70 ± 5% RH, 18 ± 2 ºC / 65 ± 5% RH and in uncontrolled condition of temperature and relative humidity (natural). Physiological quality was evaluated at the beginning and at 3, 6, 9 and 12 months of storage by germination test, electrical conductivity, accelerated aging and sand emergence. The experiment was conducted in split plots in a completely randomized design with three replications. Environmental factor was applied in the plots, cultivars in the subplots and storage period in subplots. Cultivar Seleta showed higher dormancy, which was surpassed during storage regardless of environment conservation. In general, seeds stored in natural environment showed lower physiological quality. Only the seeds of cultivar Seleta, regardless of the environment, maintained germination above the minimum required for commercialization until six months of storage.

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